Rubber attachment for pencils



(NO Model.)

W. P. HUFFMAN. RUBBER ATTACHMENT FOR PENGILS. vN0. 606,551 PatentedvJune- 28, 1898.

UNITED STATES PATENT @rnicn.

WVILLI'AM PINCKNEY HUFFMAN, OF HICKORY, NORTH CAROLINA.

V'RIUBBER ATTACHMENT FOR P ENCILS.

SPECIFICATION forming part of Letters Patent No. 606,551, dated June28, 1898. Application filed August 31, 1897. Serial No. 650,179.' (No model.)

To coZZ whom it may concern:

Be it known that I, WILLIAM PINCKNEY HUFFMAN, a citizen of the United States, residing at Hickory, in the county of Catawba and State of North Carolina, have invented a new and useful Rubber Attachment for Pen cils, of which the following is a specification.

The invention'relates to improvements in rubber attachments for pencils.

The object of the present invention is to improve the construction of rubber-eraser attachments for pencils and to provide a simple, inexpensive, and efiicient device adapted to be readily applied to either end of pencils of diiferent diameters and capable, when used on the pointed or writing end of a pencil, of being readily brought in operative posit-ion by simply rotatingthe pencil.

The invention consists in the construction and novel combination and arrangement of parts, as hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a rubber-eraser attachment constructed in accordance with this invention and shown applied to a pencil and illustrating the position of the rubber duringwritin g. 2 is a similar'view, the rubber being turned down in operative .position. Fig. 3 is a longitudinal sectional view. Fig. 4 is a detail perspective view of the rubber-holder. Fig. 5 is a detail perspective view of the conical or wedge-shaped sleeve,

Like numerals of reference designate cor responding parts in the several figures of the drawings.

1 designates a rubber-holder, comprising a slightly-tapering sleeve 2, adapted to receive a pencil, and a rubber-receiving socket 8, formed integral with the sleeve 2 and arranged at an angle to the same, as illustrated in the accompanying drawings.

Therubber attachment, which is adapted for use on either end of a pencil, is most advantageous on the pointed or writing end, and while the pencil is in use the rubber-receiving socket is arranged contiguous to the first or index finger and is adapted to be turnedv down-in position for use by simply r0- tating the pencil to the left to bring the rub her-receiving socket adjacent to the second Fig.

finger, as illustrated in Fig. 2 of the accompanying drawings. An eraser 4 of rubber is mounted in the arm or socket, and the sleeve 2 is interiorly threaded at 5 and is adapted to engage corresponding screw-threads 6 of an inner tapering sleeve 7. The inner tapering sleeve 7 engages a lead-pencil S and is split longitudinally at'9 and is expansible to receive lead-pencils of different diameters. It is firmly clamped on a lead-pencil by the sleeve of therubber-holder, which compresses it. The screw-threads 5 are just sufficient in number to obtain a hold on the tapering inner sleeve and the rest of the inner surface is smooth. 7

One end of the inner tapering sleeve is provided with a milled edge 10 in order that it may be readily grasped in adjusting the parts.

The inner face of the tapering sleeve 7 may be corrugated or otherwise roughened to enable it to obtain a firm hold on the pencil, and

the clamping action caused by the engagement of the outer and inner sleeves is sufficient to'hold the device firmly on any round pencil; The device can also be applied to pencils of any other regular shape.

The invention has the following advantages: The device is simple and comparatively inexpensive in construction and is adapted to be readily applied to pencils of different diameters. It may be conveniently used on either end of the pencil, but is most advantageous on the writing end, as it can be readily brought in position for use by simply rotating the pencil and without turning the same end for end.

Changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

What I claim is- 1. The combination with a pencil, of a sleeve fitting 011 the front end of the pencil in rear of the point thereof and adapted to be arranged at any point on the pencil intermediate of the ends of the same, an eraser extending outward at an angle to the sleeve, whereby it may be brought into and out of position'for use by simply rotating the pencil, and means connected with the sleeve for frictionally engaging the pencil, whereby the device is secured to the latter, substantially as described.

2. The combination with a pencil, of an eraser-holder provided with a short longitudinal sleeve fitting 011 the front end of the pencil in rear of the point and adapted to be arranged in any position between the ends of the pencil and having a tubular arm extending toward the point of the pencil, located a short distance therefrom and forming a socket for a piece of rubber or similar material, whereby the eraser may be brought in position for use by simply rotating the pencil, and an inner sleeve clamping the pencil and engaged by the longitudinal sleeve, substantially as described.

3. The combination with a pencil, of a short inner tapering sleeve split longitudinally and arranged on the pencil in rear of the point and adapted to be placed in any position between the ends of the pencil, said tapcring'slceve being exteriorly threaded, and an eraserholder having an interiorly-threadcd tapering sleeve engaging the inner sleeve, said holder being arranged to support a piece of rubber or other erasing material near the point of the pencil, whereby the device may be brought into position for use by simply rotating the pencil, substantially as described.

In testimony that I claim the foregoing as my own I have hereto atlixed my signature in the presence of two witnesses.

WILLIAM lINCKMil llL'FlrllAN.

Witnesses:

A. A. SHUFORD, A. M. INGOLD. 

